Patents Examined by David W. Wu
  • Patent number: 9469704
    Abstract: The invention is directed to a process for the preparation of lubricant base stocks by contacting alphaolefin feedstocks with single-site metallocene catalysts and recycling unconverted monomers, characterized by a purge step in the recycle.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: October 18, 2016
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Mark Hagemeister, Anatoly Ilich Kramer, Pramod Jayant Nandapurkar, Margaret May-Som Wu
  • Patent number: 9309375
    Abstract: To provide (i) a water-absorbing agent, having a water-absorbent resin as a main component, whose absorbency is high and liquid permeability is enhanced and (ii) a production method thereof. The water-absorbing agent of the present invention includes a water-absorbent resin obtained by polymerizing an unsaturated monomer having a carboxyl group and included in an aqueous monomer solution in the presence of at least a non high molecular compound having four or more functional groups each capable of forming a covalent bond with a carboxyl group.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: April 12, 2016
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Hiroyuki Ikeuchi, Shigeru Sakamoto, Sayaka Machida
  • Patent number: 9309424
    Abstract: A coating for a substrate is formed by milling cationic pigment particles in the presence of a water-soluble polymer, where the water-soluble polymer acts as a binder and a dispersant for the cationic pigment particles.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: April 12, 2016
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Rhadha Sen, Richard J. McManus
  • Patent number: 9309329
    Abstract: The invention provides a polymer particle dispersion in an aqueous medium and a method of making the same, which comprises an emulsion polymerized polymer and a macroinitiator covalently bonded to the emulsion polymerized polymer. The living macroinitiator comprises a hydrophilic, pH-insensitive monomer in reacted form. The polymer particle dispersion may be obtained by reacting at least one monomer with the living macroinitiator and without a surfactant to effect polymerization of the monomer(s). The emulsion polymerized polymer may be comprised of at least one additional ethylenically unsaturated monomer in polymerized form.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: April 12, 2016
    Assignee: Arkema Inc.
    Inventors: Jason S. Ness, Noah E. Macy
  • Patent number: 9303102
    Abstract: The invention relates to polyvinyl acetals obtainable by reacting polyvinyl alcohol with at least one aldehyde with a degree of acetalization of at least 75 mol %, characterized by an OH blockiness of the polyvinyl acetal, defined as a quotient from the number of methylene groups of two adjacent alcohol sequences (VV) and the sum of the number of methylene groups of adjacent alcohol/acetal sequences and acetal/acetal sequences (VB+BB), of more than 0.151, as well as a process for the preparation thereof.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: April 5, 2016
    Assignee: KURARAY EUROPE GMBH
    Inventors: Martin Steuer, Masako Katayama
  • Patent number: 9290595
    Abstract: To provide a process for producing a fluoroolefin/vinyl alcohol copolymer with sufficiently high productivity and excellent heat resistance, whereby a quality loss by coloration is prevented, and a fluoroolefin/vinyl alcohol copolymer obtainable by such a process. A process for producing a fluoroolefin/vinyl alcohol copolymer, which comprises a polymerization step of copolymerizing a specific fluoroolefin and a vinyl ether having a hydrogen atom of a hydroxy group of a vinyl alcohol substituted with a protective group which can be deprotected, and a deprotection step of substituting the protective group in polymerized units based on the vinyl ether in the copolymer obtained in the polymerization step, with a hydrogen atom to form a hydroxyl group, and the fluoroolefin/vinyl alcohol copolymer obtainable by such a process.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: March 22, 2016
    Assignee: ASAHI GLASS COMPANY, LIMITED
    Inventor: Shunichi Kodama
  • Patent number: 9290674
    Abstract: The present invention provides a base film of modified polyvinyl alcohol as well as a method for preparing the base film of modified polyvinyl alcohol and a polarizer made from the base film. The method includes steps of: (1) executing surface graft modification of nano-silicon dioxide particles with fluorinated silane to obtain a modified nano-silicon dioxide powder; (2) adding the modified nano-silicon dioxide powder obtained from the step (1) to an aqueous solution of polyvinyl alcohol polymer, in order to prepare a composite solution of polyvinyl alcohol polymer; and (3) pouring the composite solution of polyvinyl alcohol polymer prepared from the step (2) onto a surface of a casting substrate to obtain a base film of modified polyvinyl alcohol (PVA). The present invention enhances the heat and humidity resistances and the stability of the PVA base film, and improves its mechanical performance and sticking-resistance.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: March 22, 2016
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO. LTD
    Inventors: Rui Xu, Weiwei Zhang, Hongqing Huang, Junjie Huang, Quan Liu, Jungmao Tsai, Huifang Duan
  • Patent number: 9284397
    Abstract: A curable aqueous composition, a method for forming a treated substrate with the curable aqueous composition, and the substrate so treated are provided. The composition, the method and the treated substrate may be free from formaldehyde. The composition comprises a (co)polymer and a crosslinker, said (co)polymer comprising, as (co)polymerized units, from 0.05 to 10 wt %, based on the dry weight of the composition, ethylenically unsaturated monomer having at least two carboxylic acid groups, wherein the crosslinker having at least two hydrazino groups having a molar ratio of at least 0.05 of the carboxylic acid group, and wherein the aqueous composition is curable at a temperature of from 100° C. to 250° C.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: March 15, 2016
    Assignee: Rohm and Haas Company
    Inventors: Zhiqiang Mao, Miao Yang
  • Patent number: 9273236
    Abstract: The present invention relates to aqueous polymer dispersions having a polymer content of at least 55% by weight that are suitable for pressure sensitive adhesives. The invention also relates to a process for preparing these aqueous polymer dispersions and the use of the aqueous polymer dispersions in pressure sensitive adhesives and, respectively, pressure sensitive adhesive compositions, especially in pressure sensitive adhesives for transparent substrates, such as plastics labels. The aqueous polymer dispersions have a polymer content of at least 55% by weight, based on the total weight of the dispersion. The polymer is composed of ethylenically unsaturated monomers and has a glass transition temperature below ?10° C., in which the dispersed polymer particles have a polymodal particle size distribution, in which at least 70% by weight of the polymer particles have a particle diameter of below 350 nm.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: March 1, 2016
    Assignee: BASF SE
    Inventors: Matthias Gerst, Gerhard Auchter, Gledison Fonseca, Cornelis Petrus Beyers
  • Patent number: 9272961
    Abstract: The object of the present invention is to provide a production method for a polyolefin, in which catalyst activity is improved, and a polyolefin such as a linear low density polyethylene can advantageously be industrially produced. The present invention relates to a production method for a polyolefin, in which in producing a polyolefin by the polymerization reaction of an olefin using a catalyst, an organohalide is present in the reaction system in an amount of from 0.05 to 10 ppm by weight in terms of the halogen atom as a concentration in a raw material olefin, and 1-hexene for linear low density polyethylene production raw material, containing an organohalide in an amount of from 0.05 to 10 ppm by weight in terms of the halogen atom.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: March 1, 2016
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Hiroki Emoto, Kazuyuki Yokoyama, Takashi Monoi, Kazuhiro Yamamoto
  • Patent number: 9266979
    Abstract: Catalyst components for the polymerization of olefins CH2?CHR wherein R is hydrogen or a hydrocarbon radical having 1-12 carbon atoms, comprising Mg, Ti, Cl and a compound (L) or its derivatives, selected from condensed cyclic structures which are formed by at least an aromatic ring and which are substituted with at least two hydroxy groups, said Cl and Ti atoms being in an amount such as to have a molar ratio ranging from 5 to 50.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: February 23, 2016
    Assignee: Basell Poliolefine Italia S.r.l.
    Inventors: Dario Liguori, Tiziano Dall'Occo, Giampiero Morini, Joachim Pater, Gianni Vitale
  • Patent number: 9267053
    Abstract: The present invention relates to branched polymers which contain hydroxyl groups and acrylate groups, to processes for preparing them, and to their use.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: February 23, 2016
    Assignee: BASF SE
    Inventors: Harm-Anton Klok, Sanhao Ji, Bernd Bruchmann
  • Patent number: 9266974
    Abstract: An olefin polymerization process and apparatus wherein a fluid slurry comprising monomer, diluent and catalyst is circulated in a continuous loop reactor by two or more pumps. The process and apparatus allow operating the reaction at significantly higher solids content in the circulating fluid slurry. In a preferred embodiment, the fluid slurry is circulated by two impellers arranged so that the downstream impeller benefits from the rotational energy imparted by the upstream impeller. An olefin polymerization process operating at higher reactor solids by virtue of more aggressive circulation has improved efficiencies, particularly in larger-volume reactors.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: February 23, 2016
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: John D. Hottovy, Dale A. Zellers, Robert K. Franklin, III, Donald Paul Russell
  • Patent number: 9249278
    Abstract: Compositions containing an aqueous dispersion of selected polymers and selected polyaldehydes as crosslinking agents are described. Adhesives having very high resistance to boiling water can be produced from these formulations.
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: February 2, 2016
    Assignees: Celanese Emulsions Gmbh, Oxea Deutschland GmbH
    Inventors: Christoph Balzarek, Martin Jakob
  • Patent number: 9249543
    Abstract: Asphalt surfacing compositions and methods involving asphalt millings, water, and an amount of a polyvinyl alcohol sufficient to bind the millings such that a load-bearing asphalt paving surface is formed upon application of the composition to a material are provided.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: February 2, 2016
    Assignee: Gowan Milling Company, L.L.C.
    Inventors: Richard Messinger, Gary Havens
  • Patent number: 9249060
    Abstract: The invention provides for the use of coating compositions based on one or more mineral binders, one or more polymers, one or more fillers, and, if desired, one or more additives for producing roof coatings, the coating compositions comprising at least 50% by weight of polymers, based on the dry weight of the polymers and of the mineral binders.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: February 2, 2016
    Assignee: WACKER CHEMIE AG
    Inventors: Hardy Herold, Gary P. Fischer, Kenneth Kempinski, Anke Reinschmidt
  • Patent number: 9243130
    Abstract: The invention relates to metal oxide or semimetal oxide nanoparticles having an average particle size of from 2 to 250 nm, characterized in that the nanoparticles have at least two different, free-radically polymerizable groups on the surface. The invention further relates to nanocomposites produced from such nanoparticles and also processes for producing them.
    Type: Grant
    Filed: April 20, 2009
    Date of Patent: January 26, 2016
    Assignee: Evonik Nanoresins GmbH
    Inventors: Klaus Langerbeins, Uwe Dietrich Kühner, Werner Siol
  • Patent number: 9243167
    Abstract: Provided are a sulfur modified polymer composition, free from asphalt, bitumen or like compounds, and method of making same. The inclusion of 50% by weight sulfur, or greater, into the polymer composition results in a composition that is softer and having an increased melting point, relative to the unmodified polymer composition.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: January 26, 2016
    Assignee: Saudi Arabian Oil Company
    Inventors: Ibnelwaleed A Hussein, Mohammed H Al-Mehthel, Hamad I. Al-Abdul Wahhab, Saleh H. Al-Idi, Mohammed A. Suleiman
  • Patent number: 9238756
    Abstract: A microdomained aqueous emulsion polymer is provided. The polymer comprises a first domain having a Tg of from ?80 to ?10° C. and comprising from 80 to 100 wt % of acrylic monomer; and a non-crosslinked second domain having a Tg of from 50 to 120° C. and comprising, as polymerized unit and based on the weight of the second domain, from 50 to 100 wt % of styrenic monomer; wherein the content of the second domain ranges from greater than 6 wt % to 30 wt % of the total weight of the first domain and the second domain. The polymer is suitable for applications including adhesives and binders, especially for pressure sensitive adhesives.
    Type: Grant
    Filed: June 13, 2011
    Date of Patent: January 19, 2016
    Assignee: Rohm and Haas Company
    Inventors: Kaibo Li, Zhaohui Qu, Robert V. Slone, Huixian Yang
  • Patent number: 9234094
    Abstract: An aqueous solution containing a poly(meth)acrylic acid-based polymer which shows excellent dispersibility for inorganic substances, satisfactory long-term dispersibility, and a favorable color is provided.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: January 12, 2016
    Assignee: NIPPON SHOKUBAI CO, LTD
    Inventors: Norihiro Wakao, Akihiko Kanzaki, Junichi Chosa